When my birthday rolls around each year, I like to think about what I was like 10 years earlier. Who was I then? How did I approach the world? This year was interesting because I turned 33, and it was the very first time I was able to examine this in a purely professional context. Here are three observations about my professional life at 23 that made me laugh. My work cubicle was covered in inappropriate quotes that I printed off and tacked to the walls. I didn't start bringing in personal effects to the office until sometime in my late twenties, so that was the extent of my personality. In hindsight, it's probably a good thing people didn't often stop to read them. I listened to a lot of Panic! at the Disco and Fallout Boy . If it had a thumping beat and angst-filled lyrics, I was blasting it through my headphones loud enough to annoy my (very patient) officemates. It's a wonder I can still hear anything. I was very excited about free office coffe...